Python script to automate the creation of a chromeos apk during development

chrome-os-apk.py

#!/usr/local/bin/python
import shutil
import json
from subprocess import call
import os
shutil.copyfile("app/build/outputs/apk/app-debug.apk", <packagename.apk>)
os.system("chromeos-apk <packagename.apk> -a")
with open('<packagename.apk>.android/manifest.json', "r+") as manifestFile:
    manifestJson = json.load(manifestFile)
    manifestJson["permissions"].append(<extra permissions>)
    manifestFile.seek(0)
    json.dump(manifestJson, manifestFile, indent=4)